ABSTRACT The tribological behaviour of ZA-27 alloy reinforced with nanosized SiC has not been studied. Thus, this work attempts to investigate this effect by utilising Taguchi’s factorial experiment approach. Accordingly, ZA-27 alloys reinforced with different weight fractions of SiC nanoparticles were produced using double stir casting technique. In wear test, the effect of normal load, sliding speed and reinforcement content were studied. The results revealed that reinforcing ZA-27 alloy with SiC nanoparticles improved its wear behaviour, while adding a large amount of reinforcements have a negative effect. The ANOVA test indicates that both reinforcement contents and normal load have statistically significant effects on wear rate while the effect of sliding speed is less significant. Scanning electron microscope (SEM) was used to examine worn surfaces, where features observed on monolithic alloy worn surface are typical signs for adhesive wear. The worn surfaces of metal matrix nanocomposites (MMNCs) have typical features for abrasive wear.

中文翻译：

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应用田口法研究碳化硅纳米颗粒增强ZA-27合金基复合材料的磨损行为

摘要 纳米SiC 增强ZA-27 合金的摩擦学行为尚未得到研究。因此，这项工作试图通过利用田口的析因实验方法来研究这种影响。因此，使用双搅拌铸造技术生产了用不同重量分数的 SiC 纳米颗粒增强的 ZA-27 合金。在磨损试验中，研究了法向载荷、滑动速度和钢筋含量的影响。结果表明，用 SiC 纳米颗粒增强 ZA-27 合金改善了其磨损行为，而添加大量增强材料会产生负面影响。方差分析表明，钢筋含量和正常载荷对磨损率都有统计上的显着影响，而滑动速度的影响则不太显着。使用扫描电子显微镜 (SEM) 检查磨损表面，其中在整体合金磨损表面上观察到的特征是粘附磨损的典型标志。金属基纳米复合材料（MMNCs）的磨损表面具有典型的磨粒磨损特征。